felicity

 
Pronunciation: /fɪˈlɪsɪti/

noun (plural felicities)

[mass noun]
  • 1intense happiness: domestic felicity
  • 2the ability to find appropriate expression for one’s thoughts: he exposed the kernel of the matter with his customary elegance and felicity
  • [count noun] a particularly effective feature of a work of literature or art: a book full of minor felicities

Origin:

late Middle English: from Old French felicite, from Latin felicitas, from felix, felic- 'happy'